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Diagnostic Cart help

Posted: 19 Jul 2025 13:18
by coonsgm
Greetings Atarians,

I got the following output from the diagnostic cart through VT32 on another ST. The ST doesn't boot and looks like it has a RAM issue...which the cart seems to output, but I would like some other eyes looking at this first before I take any action.
IMG_3281.jpg
The way I am reading this based on the troubleshooting guide is that Bit 13 is stuck high on read, but I'm not sure what the 92 signifies.

Appreciate any help!

Thank you

Re: Diagnostic Cart help

Posted: 19 Jul 2025 15:01
by exxos
There's a good write up here viewtopic.php?t=3143

Re: Diagnostic Cart help

Posted: 31 Jul 2025 15:25
by chakobsa
It's telling u18 is probally faulty